I have a dex setup using an hdmi USB c hub type unit to connect to my monitor (https://www.amazon.com/dp/B086DS5Q6K/ref=cm_sw_r_cp_apa_fabc_W-leGb98CTXMT?_encoding=UTF8&psc=1). I use it with my S20 Ultra just fine. BUT the problem is I cannot use it with a Note 10+ for some reason. Thr phone will say connected to display but nothing changes then eventually like 30 seconds later just says disconnected from display. I've tried turning on dex but it does nothing. I have the hdmi mode set to dex and still just absolutely nothing. Ive even wiped cache in bootloader. Do I need to have a different setup than what I have just for the note 10+? Eill it only work with that usbc to hdmi cable and no other way? Who has a note 10+ connected to just a monitor successfully? I am in desperate need of knowledge on this since I cannot find much useful information on the web.
dont need hdmi for dex.
download dex program for your pc, open dex program, connect your phone to pc with regular cable(charging cable is fine) and you will be able to start dex